PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/25-01:57:50
G01     48.5           24.3                4.6 +/-    0.68       9.1 +/-    0.68  0.040 / 0.060
G06     178.7          25.8                7.6 +/-    1.24      14.7 +/-    1.24  0.040 / 0.060
G07     147.0          10.9                7.7 +/-    4.62      20.9 +/-    4.62  0.040 / 0.030
G11     45.0           15.9                3.1 +/-    1.68       7.5 +/-    1.68  0.030 / 0.030
G13     249.2          29.2                5.6 +/-    2.67       9.9 +/-    2.67  0.120 / 0.130
G15     280.9          15.6                5.6 +/-    2.17      13.7 +/-    2.17  0.060 / 0.150
G17     315.0          77.7                6.4 +/-    1.19       6.5 +/-    1.19  0.080 / 0.110
G19     250.8          61.9                6.3 +/-    1.11       7.1 +/-    1.11  0.090 / 0.120
G28     56.4           51.6                5.6 +/-    0.56       6.9 +/-    0.56  0.180 / 0.430
G30     149.6          35.4                8.6 +/-    1.18      13.5 +/-    1.18  0.140 / 0.470